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| author | Christian König <christian.koenig@amd.com> | 2016-08-18 11:51:14 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-09-15 08:20:26 +0200 |
| commit | 792a5bf09a19f0ef30a55e32ad1a93c8f0612759 (patch) | |
| tree | 33c35d0dc2e9401b7a48dbb26b9904c3330eb261 | |
| parent | 952cbbb0fcccdf22c98e18c94ec1ad849537e33a (diff) | |
| download | linux-stable-792a5bf09a19f0ef30a55e32ad1a93c8f0612759.tar.gz linux-stable-792a5bf09a19f0ef30a55e32ad1a93c8f0612759.tar.bz2 linux-stable-792a5bf09a19f0ef30a55e32ad1a93c8f0612759.zip | |
drm/radeon: only apply the SS fractional workaround to RS[78]80
commit ae5b80d2b68eac945b124227dea34462118a6f01 upstream.
Looks like some RV6xx have problems with that.
bug:
https://bugs.freedesktop.org/show_bug.cgi?id=97099
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/gpu/drm/radeon/atombios_crtc.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/gpu/drm/radeon/atombios_crtc.c b/drivers/gpu/drm/radeon/atombios_crtc.c index 259cd6e6d71c..17e34546ade2 100644 --- a/drivers/gpu/drm/radeon/atombios_crtc.c +++ b/drivers/gpu/drm/radeon/atombios_crtc.c @@ -627,7 +627,9 @@ static u32 atombios_adjust_pll(struct drm_crtc *crtc, if (radeon_crtc->ss.refdiv) { radeon_crtc->pll_flags |= RADEON_PLL_USE_REF_DIV; radeon_crtc->pll_reference_div = radeon_crtc->ss.refdiv; - if (rdev->family >= CHIP_RV770) + if (ASIC_IS_AVIVO(rdev) && + rdev->family != CHIP_RS780 && + rdev->family != CHIP_RS880) radeon_crtc->pll_flags |= RADEON_PLL_USE_FRAC_FB_DIV; } } |